Pasteurizing apparatus.



Patented Apr. 15,1919.

3 SHEETSSHEET 1.

33:1 m tyf G. B. PITTS.

PASTEURIZING APPARATUS.

APPLICATEON FILED AUG.29.1917.

Patented Apr. 15, 1919.

3 SHEETS-SHEET 3.

attoumg Cleveland, in the county of Cuyahoga PITTS, OF CLEVELAND,

OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE i PASTEURIZING MACHINE COMPANY, OF CANTON, OHIO, A CORPORATION PASTEUEIZING APPATUS.

anes.

Specification of Letters Patent.

Patented Apr. 15, 11919.

To all whom it may concern:

Be it known that I, GEORGE B. P 1'rrs, a citizen of the United States, residing a;

an State of Ohio, have invented certain new and useful Improvements in and Relating to .Pasteurizing Apparatus, of which the following is a specification.

This invention relates to pasteurizing or liquid-treating apparatus, particularly apparatus of the type shown in Letters Patent No. 1,185,531, granted May 30, 1916, to Leroy S. Pfouts.

The invention is adapted for use in connection with liquid treating ap aratus of the character disclosed in U. Letters Patent No. 1,183,764, granted to Leroy S.

Pfouts; However, the invention may be used in connection with liquid treating apparatus of any desired. construction.

The objects of the invention are to simplify the construction of apparatus of this character, to prevent loss of hcat'from the liquid being treated, and to increase the eificiency and capacity of the apparatus.

Other objects of the invention will be aparent to those skilled in the art from the ollowing description, in which Figure 1 is a view, partly in elevation and partly in section, of an apparatus embodying my invention.

Fig. 2 is a view of the apparatus, looking toward the right in Fig. 1, parts being broken away.

Fig. 3 is a top plan view of the apparatus, two of the holders being removed.

Fig. 4 is a section on the line 44 of Fig.

Fig. 5 is a fragmentary sectional view.

In the drawings, 1 indicates as an entirety a support. Thesupp'qrt 1 preferably comprises a table 1, a plurality of legs 1 on which the table 1 is mounted, and a base 1, to which the legs 1" may be'secur'cd in any well known manner. The table '15 may, comprise a pair at superposed annulaii'jtmeinbers 1 1, the: lower one 1 thereof-being secured to theIlegs 1" in any forming with the latter and base 1 framework to {support a series of holders Hand :1 driving mechanisnn2. The upper annular member 1 rests upon the a rigid liquid lower member 1, if desired, it may be detachably secured thereto in any well known manner. The upper annular member 1 may be provided on its upper face with vertical walls 1, extending radially and around the outer edge of the member to form pockets or recesses for removably receiving the holders 9. r

1 indicates one or more cross members, connected at their opposite ends in any well known manner to the legs 1*. The cross members 1 are provided with a bearing to support a shaft i of a valve mechanism 4, which will be later described. At its lower end the, shaft 4 has fixed to it a worm gear 4* 3 indicates a sub-support which may be secured in any suitable manner to two of the legs 1". 3 indicates a bracket fixed to the sub-support and provided with a bearing 3. 5 indicates a shaft. mounted in the bearing 3 and carrying at its outer end fast and loose pulleys 5* for a belt (not shown). 6 indicates a pair of spaced lugs fixed in any preferred manner to the sub-support 3, and 6 indicates a rod supported at its opposite ends in openings formed in, the free ends of the lugs (5. 6' indicates a collar or sleeve, rotatably mounted on the rod 6 and carrying a pair of arms 6. The arms 6" are formed with alincd openings to receive and support a shaft 5. 7 indicates a worm-fixed to the shaft 5' between the arms 6" and adapted to mesh with the worm gear 4*.

The worm 7 is 01th length to occupy the space between the arms 6. The arms 6 therefor take the end thrusts of the worm 7. The collar 6 is rotated in one direction on the rod 6 to move the worm 7 into engagement with the worm gear 4*, as shown in Figs. 1 and 2; the collar is rotated in the opposite direction to disengage the worm 7 from the worm gear 4*, for a purpose to be later described. When the worm 7 is in mesh with=the worm gear 4*, the shaft 5' is preferably in alinement with the shaft 5 and may be connected thereto by any suitable means, such as a connector 8. The connector 8 may comprise a sleeve adapted to move endwise on the shaft 5 andreceive within its open end theadj'acent end of the shaft 5. The walls of the sleeve opening and shaft end are suitably shaped to cause a locking or driving connection between them. The collar 8 is preferably fixed to the shaft 5 by a set screw 8 when it is either connected to or disconnected from the shaft 5'.

The holders 9 are arranged in a circula series about the axis on the table 1. They are preferably V-sliaped in cross section in order that the maximum number can be provided on the table 1 and all have their inner end walls terminate at an equal distance from a common center, which by preference is the center of the table 1. The holdersil may be of a size and shape. to exactly fit within the pockets formed by the walls 1; in that event the latter serve to maintain the holders 9 stationary and against movement outwardly or inwardly. Each holder comprises a bottom wall 9, an outer end wall 9", side walls 9, a removable top wall or cover 9 and an inner end wall 10. At its lower end, the inner end Wall 10 is'formed with an opening 10, to which reference will later be made. The opening 10. in the end wall of each holder is arranged at or adjacent the bottom wall thereof. This permits the v liquid delivered to the holder to rise therein,

thus eliminating agitation and foaming or frothing thereof; it also permits all of the liquid to flow out of the holder by gravity. The bottom wall of each holder may be inclineddownwardly toward its inner end wall to insure complete emptying of the liquid therefrom. Each wall may be constructed as shown in Fig. 5, to prevent the loss of heat from the liquid in the holder; that is, each wall may comprise spaced plates 9 to form between them a space which is filled with a suitable heat non-conducting material such as cork.

The valve mechanism 4; includes a valve member 4*" which cooperates with the end walls 10 to control the flow of the liquid to and from the holders or vessels 9. The valve member 4" preferably comprises a circular plate 4"" the side wall of which may be of conical shape, and a socket member 4' to receive the upper end of the shaft 4". The upper end of the shaft 4*. is squared or otherwise shaped and the socket member is similarly shaped to receive the shaft end and be driven thereby. The valve member 4*" is formed with two ducts 4*, 4. The duct 4" serves as a conduit for the liquid as it flows to the holders or vessels 9, its inner end opening upwardly preferably centrally of the valve member 4 and its opposite or outer end leading through the conical side wall of the plate 4 and successively regis ters with the openings 10 leading through the inner end walls 10 of the holders 9. The duct 4 successively registers with the openin 10 and conducts the liquid through the va ve member P from a holder or e sel. 9

when the latter is emptying, its receiving end or port leading through the conical side wall of the plate 4*", and preferably ad]a cent to the port of the duct 4, and its opposite end or discharge port opening downwardly at one side of the shaft 4:, as shown in the drawings. When the holders 9 are arranged in assembled position (see Fig. 3), their inner end walls 10 are arranged sub stantially edge to edge. In the event the edges of the inner end walls do not meet, suitable spacing devices may be placed between them to form a continuous seat or wall for the valve member 4. As shown in Fig. 4, the walls 10 are arranged aboutthe axis of the table 1 or shaft 4", so that when the holders are assembled, the walls 10 thereof coiiperate to form a seat for the valye mem ber 4". To provide a suitable bearing face for the side or conical wall of the valve member 4& I prefer to thicken the lower porrect engagement with the inner end walls of the holders 9. the ducts of the valve member registering with the openings l0 to control the flow of the liquid to and from the holders 9. It will also be seenthat eachv holder is formed with a single opening through which the liquid flows both to fill and empty the holder. By reason of such construction, the

liquid flows directly from the valve member to each holder when the latter is filling;

when each holder is emptying. the liquid flows therefrom directly to the valve member. In other words, the holders 9 and valve member 4 are correlated with each other in a manner which makes it unnecessary to provide conduits for the liquid of any kind I whatsoever between the valve member and the holders. This form of construction pre vents loss of heat from theliquid due to its flow through conduits between the valve member and the holders. It insures that all of the liquid flowing through the duct 4 will enter an adjacent holder 9 and be treated therein for the desired predetermined time and at the desired temperature; it. also insures that little, if any, agitation of the liquid will take place.

By preference, the wall 1 extends entirely around each holder 9 to form a complete pocket therefor. This form of construction has many advantages, for instance, it insures correct positioning of the holder in its pocket and it forms a suitable support for holders 9 and ncense and permits the use of an annular valve seat member, such as shown in Fig. 4. When the table member 1" is constructed in this manner, the vertical wall 1 is formed with a portto register with each opening 10.

11 indicates a receiving chamber preferably arranged substantially axially of the slightly elevated relative thereto to permit the flow of the liquid by gravity to the holders. The chamber 11 is provided with a suitable cover 11' through which extends the discharge end. of a pipe member and an inner through'the apparatus.

It will be noted that the connection between the discharge end of the a, to conduct the liquid in a substantlally continuous and uniform manner from the liquid trough or discharge duct of a suitable liquid heater (not shown) to the chamber 11. Each wall of the chamber 11 maybe formed of two parts or members, an outer member, between which is provided a suitable insulating jacket-, similar to the construction of the holders 9, as shown in Fig. 5. The chamber 11 may be provided with an outlet pipe section 11", which is detacha 1y connected in any preferred manner to the upper end of a conduit 11. The lower end of the conduit 11 is detachably connected in any well known manner to a coupl' 11, which in-turn may be screw-threaded in the inner end or opening for the duct 4". The

pipe or conduit 11? and its connections with the chamber 11 and valve member 42" preferably serve as the means for. supporting the chamber 11 upon the latter and at a suitable height to efifect the flow of the liquid pipe amand the cover 11" of the chamber 111s of a cher acter which permits-the chamber and cover to'rotate relative thereto without afie'cting receptacle 12. The

vthe discharge of the liquid a Preferably the pipe 09 from the pipe extends through an axial opening in the cover 11 and the latter .may be provided with a bearing which loosely receives the said pipe.

11* indicates a depending discharge pipe connected with the discharge end of the duct 4.- The pipe 11" is open at its lower end and discharges thevliquid into anannular pipe 11 may comprise a plurality of sections detachably connected together in any suitable manner, as indi-v cated at 11*. The-receptacle 12 is preferably supported by the cross members 1". At one side its bottom is formed with a dis charge opening to which is connected a conduit 12 leading to a point of delivery, such as a cooler, (not shown) or a receiving tank therefor. A suitable cut-ofivalve 12 be provided in the conduit 12.

- 13 indicates :1. pi e. or conduit leading from the pi e a an connected at its outer end to the d ielivery pipe 12. A valve, prefaxially arran ed may 'erablyof the three-way type, may be interposed at the connection of the pipe 13 with the pipe a to control the flow of the liquid to either the distributing and holding apparatus or direct to the delivery pipe 12"- which leads to the cooler, or to cut 0d the flow of the liquid entirely. The pipes'13 and 12 may be used to conduct the liquid from the heater to the cooler when it is pnnecessary to treat the liquid in the holding apparatus. The pipes a 13 and 12 may be formed in sections and connected together by couplings 13*, in a well known manner.

The conical valve member 4 and the coiiperating seats therefor may be shaped to permit the removal of the valve member 4 but connected thereto" in a manner to cause movement of the shaft with the sleeve when the latter is moved endwise. The sleeve 11 is slidably mounted in the bearing for the Shaft and at one sideit is provided wi h a rack H. 15 indicates a shaft having support at one end in the shaft bearing and at its other end'inone of the legs 1. At its outer end the shaft 15 carriesa crank 15".

At its inner end the shaft carries a pinion 16 which meshes with the rack 14. To cause the disconnection of the shaft 4* from the socket of the valve member 1 it" is first neces'sary to disconnect the connector 8 from the shaft 5, then to rotate sleeve 6" on the rod 6; Thislatter operation disengages the worm 7 from the gear 4*; thereafter, by operatin the crank 15, the pinion 16 may be rotate and it in turn through the rack 1c and sleeve 14 will move the shaft 4* downwardly. The valve member 4" may then be removed. 'Wheh the valve member is replaced the shaft 4 is moved upwardly by the operation of the direction.

I prefer to provide compression means,

pinion 16 in the opposite indicated as an entirety at 17. for normally maintaining the valve member 4 in engagcment with its seat walls 10 so that the valve member will be yieldingly maintained thereagainst at all times while being rotated by the shaft 4. Of these means, 17 indicates a collar surrounding and fitting the upper end of the shaft 1*. The collar 17 rests upon the upper end of the sleeve 14, or suitable washers thereon, so as to be thrust upwardly thereby when it and the shaft are moved upwardly. At its upper end the collar is enlarged to form an annular recess 17 17 is a coiled spring interposed between the collar 17 and the valve member 4 The &

understood that the holders 9, or the inner end walls 10 thereof. and the valve member 4". constitute a valve mechamsm WhICh COD- trols the flow of the liquid to and from the holders or vessels 9 as the openings of the ports 4. l. successively registerv'ith the openings 10.

During the time that the opening 10 for an adjacent holder or vessel 9 and the duct 4" a re in registry. as the valve member et rotates. liquid will flow therethrough from the chamber 11 to the holder to fill the same, the speed of the valve member 4*" andthe size of the openings 4". 10, being proportioned so that during the registry thereof suilicient liquid will flow through the valve to substantially fill the vessel.

The liquid i held inthe vessel 9 during the rotary movement of the valve-member R until the port of the discharge duct 4 registers with the valve opening 10, whereupon the liquid will flow by gravity from the vessel or holder through the valve opening 10 and duct 4 to the discharge pipe 11*. As the ducts i". 4, and the valve ports thereof are of substantially the same size, and the valve member 4 rotates uniformly, it will be understood that substantially the same quantity of liquid may flow out of each vessel as flowed into it in the same time interval. The valve port for the duct 4 is preferably arranged in the conical wall of the valve member 4*" immediately forward of the valve port for the duct 4", so that the filling operation for each vessel Will follow immediately after it has been emptied. This arrangement provides for the operation of filling vessels progressively and em tying them progressively; it also provides or the operation of filling and emptying adJacent vessels simultaneously.

The liquid is delivered to' a receiving tank be in any sense limiting.

permits a predetermined quantity of liquid to flow by gravity to each of the vessels, the port of the duct registering with each valve opening 10 for a given period of time in the rotary movement of the valve member, suificient, at least, to substantially fill the adjacent holder. Likewise, the discharge duct 4 registers successively with each valve opening 10 and permits the automatic discharge of the vessels successively.

The duct 4 of the valve mechanism 4 may be arranged at any predetermined point angularly of the axis of the valve member 4 relative to the duct 4, so that the distance of travel of the valve member l from the position for filling to the position for emptymg may be of proper length in order that the period for holding the liquid may be fixed according to any particular circumstances desired. From this construction and operation, it will be seen that the vessels will be automatically filled and emptied at predetermined points and that the liquidin each vessel will be held therein for a "predeten mined period, the extent of which depends upon the length and time of travel from the place of filling to the place of discharge. It will be obvious that the speed of the valve member can be changed in various ways to increase or decrease the period between the filling and emptying of the vessels.

The simplicity of the construction makes it possible to readily disassemble and clean all parts of the apparatus.

To those skilled in the art of making apparatus of the clas described, many alterations in construction and widely differing embodiments and applications of my invention will suggest themselves, without departing from the spirit and scope thereof. My disclosures and the description herein are purely illustrative and are not intended to lVhat I claim is: i

1. In apparatus of the class described, the combination of a plurality of holders each formed with an opening in one wall, a valve member having a delivery duct and a discharge duct, the outlet and inlet ports of which register with the openings in the walls of the holders, means for supplying liquid to the inlet port of said delivery duct, means for conveying-away the liquid from the outlet port of the discharge duct, and means for causing relative movement b tween said series of holders and said valve member. p

2. In apparatus of the class described, the

combination of a plurality of holders arby said holders and formed with a delivery duct and a discharge duct, the ports of which register with theopenings forn edin said holders, means for supplying liquid to the delivery duct of said valve, means for conveying away the liquid from the discharge duct of said valve, and means for retating the said valve.

3. In. apparatus of the class described, the combination of a plurality of holders arranged in a circular series andcooperating to form'a seat for a rotary valve, each holder being 'fcrmed with an opening through which the liquid flows into and therefrom, a valve rotatably supported in the seat formed by said holders and formed with a delivery duct and a discharge duct, the ports of which register with the openings formed in said holders, means for supplying liquid to the delivery duct of said valve, means for conveying away the liquid from the discharge duct of said valve, means for rotating the said valve, and means for yieldingly maintaining said valve in operative osition.

4. In apparatus of the class descr1bed, the combination of a plurality of holders ars ranged in a circular series; the inner end wall of each holder being formed with an opening in line with the bottom of said holder through which liquid flows mm and out of the holder, and a valve having rotative engagement with the inner end walls of valve.

said holders and formed with two ducts, the ports of which register with the openings in said inner end walls and control the flow of liquid therethrough in op osite directions, means for supplying liquid to the delivery duct of said valve, means for conveyin away the liquid from the discharge duct 0 said valve, and means for rotating said 5. In apparatus of the class described, the combinatlon of a plurality ofholdersarranged in a circular series, the inner end wall of each holder being formed with an opening .in line with the bottom of said holder through which liquid flows into and out of the. holder and the bottom of said holder bein inclined toward the inner endwall thereo and a yalve having rotative engagement with the inner end walls of said holders and formed with twoducts, the ports of which register with the openings in said inner endwalls and control the flow of liquid therethrough in op osite directions, means for supplying liquid to the delivery duct of said valve, means forconveying away the liquid from the discharge duct of said valve, and means for rotating said valve.

6. In apparatus of the class described, the

; combination of a series of holders arranged about a common axis, the inner end walls t said holders being curved and codperatwith an opening and said valve being formed with a delivery duct and a discharge duct, the ports of which register with said openings, whereby the liquid is delivered directly to and discharged directly from said holders, means for supplying liquid to said delivery duct, means for conveying away the liquid from said discharge duct, and means for rotating said valve.

7. In apparatus of the class described, the combination of a series of holders arranged about a common axis, the inner end Walls of said holders being curved and cotiperating to-form a seat, a removable valve mounted to rotate in the seat formed by said in.- her end walls, each said inner end wall being formed with an opening and said valve being formed with a delivery duct and a discharge duct, the ports of which register with said openings, whereby the liquid is delivered directly to and discharged directly from said holders, means for supplying liquid to said delivery duct, means for conveying away the liquid from saidrdischarge "duct, and means for rotating said valve. 8. In apparatus of the class described, the

combination of a series of holders arranged about a common axis, the inner vertical end Walls of said holders having curved portions which coiiperate to form a seat, a valve mounted on a vertical axis to rotate in the seat formed by said inner end walls, each inner vertical end wall being formed with an openin and said valve being formed with a delivery duct and a discharge duct, the ports of which register with said opening, whereb the liquid is delivered directly to and. disc iarged directly from said holders, means for supplying liquid to said delivery duct, means for conveying away the liquid from said discharge duct, and means for rotating said valve.

' 9. The combination of a series of vessels having inner vertical end walls arranged concentric to a common axis and .coiiperating to form a seat for a valve, a valve supported on a vertical axis to rotate in the seat vformed by said inner end walls, each inner the delivery duct of said valve member and.

a source of liquid supply, means for receiving the liquid discharged by the discharge duct of said valve, and means for rotating said valve.

10. In apparatus of the class described, the combination of a plurality of holders each. formed with a single opening in one wall through which the holder is filled and emptied, a valve member having a-delivery duct and a discharge duct, the outlet and inlet ports of which register with the openings in the Walls of the holders to control the filling and emptying thereof, means for supplying liquid to the inlet port of said de ivery duct, means for conveying away the liquid from the outlet port of the discharge duct, and means for causing relative movement between said holders and said valve member. I

In testimony whereof I ailix my signature.

GEORGE B. PITTS. 

